CN104528957B - Circulating water treatment method and equipment - Google Patents
Circulating water treatment method and equipment Download PDFInfo
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- CN104528957B CN104528957B CN201410796207.4A CN201410796207A CN104528957B CN 104528957 B CN104528957 B CN 104528957B CN 201410796207 A CN201410796207 A CN 201410796207A CN 104528957 B CN104528957 B CN 104528957B
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Abstract
The invention discloses a circulating water treatment method and equipment. The circulating water treatment equipment comprises a reaction chamber, an end cover, a motor, 3-5 descaling brushes, a bracket, an anode, a water inlet and a water inlet valve, a water outlet and a water outlet valve, a drain outlet and a drain outlet valve, a control center, a UV emitter, a gas exhausting device and a filter screen, wherein the inner wall of the reaction chamber is taken as a cathode; an anode which is a barrel-shaped structure extends into the reaction chamber; the descaling brushes and a central shaft are connected through a stainless steel connecting frame on the bottom of the reaction chamber; the motor is connected with the center shaft; the motor rotates to drive the centre shaft to rotate, so that the descaling brushes rotate; the upper part of the reaction chamber and the descaling brushes are connected though a steel ring; the steel ring and the stainless steel connecting frame are respectively arranged at the outer side and the bottom side of the anode, so that the anode is not contacted in the rotary process; the control center is fixed on a housing; the UV emitter is positioned on the end cover; the gas exhausting device is consistent with a signal received by the water outlet, so that when the water outlet is opened, the gas exhausting device is opened for exhausting a gas generated by the reaction chamber; the filter screen is arranged in the water outlet; the bottom of the reaction chamber is of a cone-shaped structure.
Description
Technical field
The invention belongs to technical field of environment protection equipment, specifically a kind of Electrolyzed water treatment method of recirculated water and having
Automatically the fouling water treatment facilities in advance of clearing function.
Background technology
Industrial numerous areas all be unable to do without recirculated water, and recirculated water easily forms incrustation scale, incrustation scale during heat exchange
It is a kind of material of heat conductivity extreme difference, the presence having incrustation scale greatly reduces heat exchange efficiency, consumes the substantial amounts of energy in vain, and
And fouling also can shorten service life of equipment along with corrosion, also easily cause security incident.The presence of incrustation scale is greatly perplexed
Enterprise, the work of cleaning incrustation scale is complicated and loaded down with trivial details, not only needs detaching equipment and pipeline, also needs stop work and production, also consumes
A large amount of costs of labor.
At present, existing descaling method mainly has water pretreatment method, Physical and chemical method, and wherein water pretreatment method adopts
Ion-exchange unit can replace the incrustation ion in water outlet in advance, but this equipment need to regularly replace exchange media, and work efficiency
Unstable.Physical, frequently with the method for electromagnetism or strong magnetic treatment, stops incrustation ion in water from combining and generates incrustation scale, but the method
Anti-scale descaling effect market is generally reflected not good.Chemical method mainly adds chemical agent to stop incrustation scale from being given birth to in recirculated water
Become, so Expenses Cost is too high, and easily causes secondary pollution.
Content of the invention
The invention proposes a kind of fouling water treatment facilities in advance with automatic clearing function, specific as follows：
A kind of circulating water treatment method, step includes：
1) there is electrolysis water reaction near negative electrode, generate substantial amounts of hydroxide ion, make the pH value in this region be increased to 10
More than, the main incrustation ion in the presence of carbon dioxide so that in water is calcium ion and magnesium ion reaction generates Calcium Carbonate
And magnesium carbonate, and sour calcium and magnesium carbonate be attached on reaction chamber wall in the form of carbon incrustation scale；Chemical reaction near negative electrode
As follows：
2H2O+2e—→H2+2OH—
CO2+OH—→HCO3 —
HCO3 —+OH—→CO3 2—+H2O
CO3 2—+Ca2+→CaCO3
2), near anode, anode is quasiconductor for titanium oxide, and titanium oxide has specific outer electronic structure, in electric field
In have " hole " effect, there is the ability of powerful attraction electronics, under the catalysis of ultraviolet and electric current, make the moisture in water
Son and hydroxide ion lose an electronics, thus generating the hydroxyl radical free radical OH with superpower oxidability；Hydroxyl free
Base, to aoxidize each quasi-microorganism and Organic substance in water, while sterilization algae removal, eliminates the Organic substance in water, eliminates it
The hidden danger of pollution environment；Its reaction equation is as follows：
Anode nearby, in the presence of electric current, also generates ozone, chlorine, free chlorine and hydrogen peroxide, further sterilizing
Algae；Its reaction equation is as follows：
O2+2OH—→O3+H2O+2e—
2Cl—→Cl2+2e—
Cl—→Cl0+e—
2H2O→H2O2+2H++2e—
3) scaling process, opens water inlet and outlet, forms incrustation scale, the formation of incrustation scale in its inwall during the reacted room of water
The rising of the resistance value of reaction chamber wall can be caused；
When scale forming reaches certain value, when resistance value reaches threshold value, close water inlet and outlet, start scale removal
(or reach scale removal intermittent time of setting start scale removal)；When resistance value reaches the resistance value corresponding to the no dirty state of inwall
When, stop scale removal；
It is full of incrustation scale float in reaction indoor water now, in the presence of electric current in water, produce electric flocculation phenomenon, will
Incrustation scale float is flocculated into larger particles and is deposited in reative cell bottom, opens water inlet and sewage draining exit, by the water row containing incrustation scale
Go out.
A kind of circulating water treatment device of said method, including：Staving, anode, water inlet, outlet, controller, UV send out
Emitter and DC source；
The inwall of described staving is conductive material, and as negative electrode, as reative cell, reative cell is the inner chamber of staving this inwall
Barrel shape；
It is indoor that described anode is contained in reaction；Anode is connected with external power source；The material of anode is partly led for titanium oxide metal
Body；Described anode is barrel shape, and the anode of barrel shape is in the centre position of reative cell, and the axis of anode and reative cell
Centrage overlap；The outfan of described DC source connects negative electrode and anode respectively；
Described reative cell is airtight；, built with UV emitter, UV emitter is to the indoor transmitting ultraviolet of reaction for reative cell；
Described water inlet and outlet are incorporated on reative cell；Described reactor top is provided with air vent；Reative cell bottom
Equipped with sewage draining exit；
Also include motor；Motor is contained in the top outside staving, and the power output shaft of motor is connected with center by shaft coupling
Axle；This central shaft stretches into reative cell, and the axis of central shaft is identical with the axis of reative cell；
Scale removing brush is connected with central shaft；Scale removing brush is drum with the become track of central axis, this drum
Diameter corresponding with the diameter of inner wall of barrel.
Also include controller, described controller controls the opening/closing of water inlet, outlet, air vent and sewage draining exit, controls electricity
Opening/stopping of machine, controls the on/off between DC source and negative electrode and anode, controls opening/stopping of UV emitter.
Equipped with water intaking valve on described water inlet；Equipped with drainage screen on described outlet, the outside of drainage screen is equipped with outlet valve；
Equipped with blowoff valve on sewage draining exit.(water intaking valve, outlet valve and blowoff valve can be automatically controlled)
The top of described staving is equipped with detachable end.Bottom outside staving is equipped with support.Cathode material be rustless steel,
Carbon steel, aluminum or copper.
When implementing, described anode is connected with end cap, and stretches in reative cell；
Described scale removing brush is connected by the rustless steel link of reative cell inner bottom part with central shaft；Lead in reative cell internal upper part
Cross steel ring and fetch fixing scale removing brush by being connected between scale removing brush；Steel ring is trapped among beyond anode outer wall, and rustless steel link is in anode
Below bottom, under scale removing brush rotary state, steel ring does not contact anode with rustless steel link；
Described scale removing brush is made up of plastics or elastomeric material, and quantity is 3～5；UV emitter is located on end cap, to reaction
Indoor transmitting ultraviolet；Exhaust apparatus is simultaneously opening/closing with outlet；Described drainage screen is 70 100 mesh；Reative cell bottom is circle
Pyramidal structure.
Brief description
Fig. 1：This automatic desludging is electrolysed hydrotreater structural representation.
Reative cell 1, outlet and outlet valve 2, air vent 3, support 4, UV emitter 5, anode external power supply attachment means
6, motor 7, controller 8, water inlet and water intaking valve 9, anode 10, sewage draining exit and blowoff valve 11, scale removing brush 12, rustless steel link
13, central shaft 14, drainage screen 15, end cap 16.
Specific embodiment
1 with specific embodiment, the technical program is further described below below in conjunction with the accompanying drawings：
A kind of fouling water treatment facilities in advance with automatic clearing function, its structure mainly includes reative cell, end cap, electricity
Machine, scale removing brush, support, anode, water inlet and water intaking valve, outlet and outlet valve, sewage draining exit and blowoff valve, controller, UV sends out
Emitter, exhaust apparatus, drainage screen.As negative electrode, its material can be rustless steel to the inwall of reative cell, carbon steel, aluminum, copper etc.；Anode
For barrel shape structure, material is that to have the surface of corrosion resistance be titanium oxide metal, is connected with end cap, and stretches into reative cell
In；Scale removing brush is connected by reative cell bottom rustless steel link with central shaft, and motor is connected with central shaft, the rotational band of motor
The rotation of dynamic central shaft, so that the rotation of scale removing brush, in order to fix scale removing brush, passes through steel ring by scale removing brush on reative cell top
Between be connected, steel ring and rustless steel link respectively in the outside of anode with bottom side it is ensured that not contacting sun in rotation process
Pole；Scale removing brush is made up of plastics or elastomeric material, and quantity is 35；Controller is fixed on shell, and scale removal, blowdown were waited
Process automation controls；UV emitter is located on end cap, can be to the indoor transmitting ultraviolet of reaction；Exhaust apparatus is accepted with outlet
Signal is consistent, and when outlet is opened, exhaust apparatus is opened, and reative cell is generated gas and discharges；The built-in drainage screen of outlet, mesh
Number is 70 100 mesh, prevents the incrustation scale residue not drained from discharging；Reative cell bottom is conical structure.
In the scaling process of this equipment, negative electrode is that electrolysis water reaction occurs near reaction chamber wall, generates substantial amounts of hydrogen-oxygen
Radical ion, makes the pH value in this region be increased to more than 10, the main incrustation ion calcium in the presence of carbon dioxide so that in water
Ion and magnesium ion reaction generate Calcium Carbonate, magnesium carbonate and are attached on reaction chamber wall in the form of incrustation scale, cathode portion
Main chemical reactions are as follows：
2H2O+2e—→H2+2OH—
CO2+OH—→HCO3 —
HCO3 —+OH—→CO3 2—+H2O
CO3 2—+Ca2+→CaCO3
Near anode, because titanium oxide is quasiconductor, there is special outer electronic structure, have " hole " in the electric field
Effect, it has the ability of powerful attraction electronics, under the catalysis of ultraviolet and electric current, make in water hydrone and hydroxyl from
Son loses an electronics, thus generating the hydroxyl radical free radical OH with superpower oxidability, in the oxidable water of hydroxyl radical free radical
Each quasi-microorganism and Organic substance, while sterilization algae removal, eliminate the Organic substance in water, eliminate its pollution environment hidden
Suffer from, reaction equation is as follows：
Anode nearby, in the presence of electric current, also generates the oxides such as ozone, chlorine, free chlorine, hydrogen peroxide, can enter one
Step sterilization algae removal, reaction equation is as follows：
O2+2OH—→O3+H2O+2e—
2Cl—→Cl2+2e—
Cl—→Cl0+e—
2H2O→H2O2+2H++2e—
Scaling process, opens water intaking valve and outlet valve, forms incrustation scale, the formation meeting of incrustation scale in its inwall during the reacted room of water
Cause the rising of resistance, resistance reaches a certain numerical value when scale forming reaches certain value, or when reaching the scale removal interval of setting
Between (according to the difference of water quality, be usually set to 24 hours), now controller sends signal, closes water inlet and outlet,
Start motor and carry out scale removal program, motor drives scale removing brush at the uniform velocity to sweep in inner wall surface, incrustation scale is struck off, scale removing brush rotating speed is
20—24rpm.When the resistance value corresponding to resistance returns to inwall no dirt, close motor, fill in reaction indoor water now
Full water dirt float, in the presence of electric current in water, produces electric flocculation phenomenon, incrustation scale float can be flocculated into larger particles and
It is deposited in reative cell bottom.After closing motor about 7 10 minutes (being set by controller), automatically turn on water inlet and sewage draining exit,
Water containing incrustation scale is discharged, after 23 minutes (being set by controller), closes sewage draining exit, open from outlet, system recovery is extremely
Electrolysis scaling process.
The effect of this hydrotreater is exemplified below：
The action effect of this electrolysis hydrotreater can be embodied by continuously measuring and analyzing the firmness change of recirculated water.Choosing
A quantity of circulating water is taken to be 800m3/ h circulation, possesses water yield 270m3, cycles of concentration is set to 3 and 10, and cooling tower evaporation capacity is
8m3/ h, actual blowdown flow rate 3.2m3/ h, total rate of water make-up 12m3/h.It is 1000m from processing the water yield3The electrolysis hydrotreater of/h.
In the case that cycles of concentration is 10, contrast electrolysis hydrotreater uses the change of recirculated water calcium hardness in front and back, such as
Under：
As seen from table, before electroless hydrotreater, after circulation puts into operation about 800 hours, calcium hardness is steady
It is scheduled on C=1990ppm.After electrolysis hydrotreater, then after about 300 hours, calcium hardness is stablized in C=
590ppm about.Water hardness reducing effect is fairly obvious.
Electroless hydrotreater cycles of concentration controls 3, and after adding electrolysis hydrotreater, cycles of concentration controls 10, right
The ratio change of in front and back's recirculated water calcium hardness, as follows：
As seen from table, before electroless hydrotreater, when cycles of concentration is 3, put into operation in circulation about 250 little
Shi Hou, calcium hardness stable in C=623ppm.After electrolysis hydrotreater, when cycles of concentration is 10, then through about
After 300 hours, calcium hardness stable in C=590ppm.After use while cycles of concentration improves, hardness has declined,
Using effect is fairly obvious.
Claims (6)
1. a kind of circulating water treatment method, is characterized in that step includes：
1) there is electrolysis water reaction near negative electrode, generate substantial amounts of hydroxide ion, make the pH value in this region be increased to more than 10,
Main incrustation ion in the presence of carbon dioxide so that in water is calcium ion and magnesium ion reaction generates Calcium Carbonate and carbonic acid
Magnesium, and Calcium Carbonate and magnesium carbonate be attached on reaction chamber wall in the form of carbon incrustation scale；Chemical reaction near negative electrode is as follows：
2H2O+2e—→H2+2OH—
CO2+OH—→HCO3 —
HCO3 —+OH—→CO3 2—+H2O
CO3 2—+Ca2+→CaCO3
2), near anode, the material of anode is titanium oxide metal semiconductor, and titanium oxide has specific outer electronic structure,
Have " hole " effect in electric field, there is the ability of powerful attraction electronics, under the catalysis of ultraviolet and electric current, make in water
Hydrone and hydroxide ion lose an electronics, thus generating the hydroxyl radical free radical OH with superpower oxidability；Hydroxyl
Free radical, to aoxidize each quasi-microorganism and Organic substance in water, while sterilization algae removal, eliminates the Organic substance in water, eliminates
The hidden danger of its pollution environment；
Anode nearby, in the presence of electric current, also generates ozone, chlorine, free chlorine and hydrogen peroxide, further sterilization algae removal；Its
Reaction equation is as follows：
O2+2OH—→O3+H2O+2e—
2Cl—→Cl2+2e—
Cl—→Cl0+e—
2H2O→H2O2+2H++2e—
3) scaling process, opens water inlet and outlet, forms incrustation scale in its inwall during the reacted room of water, and the formation of incrustation scale can be made
Become the rising of the resistance value of reaction chamber wall；
When scale forming reaches certain value, when resistance value reaches threshold value, close water inlet and outlet, start scale removal, or
The scale removal intermittent time reaching setting starts scale removal；When the resistance value corresponding to resistance value reaches the no dirty state of inwall, stop
Scale removal；The scale removal intermittent time is set as 2～4 hours；
It is full of incrustation scale float in reaction indoor water now, in the presence of electric current in water, produce electric flocculation phenomenon, by incrustation scale
Float is flocculated into larger particles and is deposited in reative cell bottom, opens water inlet and sewage draining exit, and the water containing incrustation scale is discharged.
2. a kind of circulating water treatment device realizing claim 1 methods described, it is characterized in that including：Staving, anode, water inlet
Mouth, outlet, controller, UV emitter and DC source；
The inwall of described staving is conductive material, and as negative electrode, as reative cell, reative cell is drum to the inner chamber of staving to this inwall
Shape；
It is indoor that described anode is contained in reaction；Anode is connected with external power source；The material of anode is titanium oxide metal semiconductor；Institute
Stating anode is barrel shape, and the anode of barrel shape is in the centre position of reative cell, and in the axis of anode and reative cell
Heart line overlaps；The outfan of described DC source connects negative electrode and anode respectively；
Described reative cell is airtight；, built with UV emitter, UV emitter is to the indoor transmitting ultraviolet of reaction for reative cell；
Described water inlet and outlet are incorporated on reative cell；Described reactor top is provided with air vent；Reative cell bottom equipped with
Sewage draining exit；
Also include motor；Motor is contained in the top outside staving, and the power output shaft of motor connects central shaft by shaft coupling；In this
Heart shaft extension enters reative cell, and the axis of central shaft is identical with the axis of reative cell；
Scale removing brush is connected with central shaft；Scale removing brush is drum with the become track of central axis, this drum straight
Footpath is corresponding with the diameter of inner wall of barrel；
The top of described staving is equipped with detachable end；
Described anode is connected with end cap, and stretches in reative cell；
Described scale removing brush is connected by the rustless steel link of reative cell inner bottom part with central shaft；Pass through steel in reative cell internal upper part
Circle fetches fixing scale removing brush by being connected between scale removing brush；
Steel ring is trapped among beyond anode outer wall, rustless steel link below anode bottom, under scale removing brush rotary state, steel ring and not
Rust steel link does not contact anode；
Described scale removing brush is made up of plastics or elastomeric material, and quantity is 3～5；
UV emitter is located on end cap, to the indoor transmitting ultraviolet of reaction；
Exhaust apparatus is simultaneously opening/closing with outlet；
Equipped with drainage screen on described outlet, described drainage screen is 70 100 mesh；
Reative cell bottom is conical structure.
3. circulating water treatment device according to claim 2, is characterized in that also including controller, described controller control into
Opening/closing, the opening/stop of controlled motor of the mouth of a river, outlet, air vent and sewage draining exit, control DC source and negative electrode and anode it
Between on/off, control the opening/stop of UV emitter.
4. the circulating water treatment device according to Claims 2 or 3, is characterized in that on described water inlet equipped with water intaking valve；Cross
The outside of filter screen is equipped with outlet valve；Equipped with blowoff valve on sewage draining exit.
5. circulating water treatment device according to claim 2, is characterized in that bottom outside staving equipped with support.
6. circulating water treatment device according to claim 2, it is characterized in that cathode material be rustless steel, carbon steel, aluminum or copper.
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| CN201410796207.4A CN104528957B (en) | 2014-12-18 | 2014-12-18 | Circulating water treatment method and equipment |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201410796207.4A CN104528957B (en) | 2014-12-18 | 2014-12-18 | Circulating water treatment method and equipment |
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| CN104528957A CN104528957A (en) | 2015-04-22 |
| CN104528957B true CN104528957B (en) | 2017-02-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105000677B (en) * | 2015-07-14 | 2017-10-27 | 宋玉珍 | Water treatment facilities and its full-automatic On Line Foul Removing Technology sterilizing unit |
| CN105600884A (en) * | 2016-01-04 | 2016-05-25 | 陈立义 | Purifying and disinfecting method for chlorine evolution anode nano-catalysis electrolytic method tail water |
| CN105540955B (en) * | 2016-01-13 | 2017-12-12 | 烟台和盛康洁环保科技有限公司 | A kind of electrochemical descaling device |
| US11370673B2 (en) * | 2016-03-09 | 2022-06-28 | Koninklijke Philips N.V. | Assembly comprising at least two elements in a movable arrangement relative to each other and an anti-fouling system |
| CN106745551A (en) * | 2017-01-04 | 2017-05-31 | 江苏润聚环保科技有限公司 | The apparatus and method of chlorion in removal industrial circulating water |
| CN108330503B (en) * | 2018-02-11 | 2019-08-02 | 中氧科技（广州）有限公司 | A kind of electrolysis ozone generator |
| CN108911302B (en) * | 2018-07-12 | 2021-08-13 | 上海泸泉泵业有限公司 | Sewage treatment equipment with dredging function and dredging method thereof |
| CN111170529A (en) * | 2018-11-09 | 2020-05-19 | 王宇 | Circulating water sterilization and scale inhibition method |
| CN109437375A (en) * | 2018-12-20 | 2019-03-08 | 北京杰诚盛源科技发展有限公司 | A kind of processing equipment and processing method of industrial circulating water |
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| CN201148361Y (en) * | 2007-12-25 | 2008-11-12 | 濮阳市东昊机械电子有限公司 | Highly effective nano-sterilizing apparatus |
| JP5498831B2 (en) * | 2010-03-25 | 2014-05-21 | アクアス株式会社 | Cooling water quality measurement method, cooling water quality management method, and water treatment chemical injection method for cooling water |
| CN201871515U (en) * | 2010-10-29 | 2011-06-22 | 上海城投污水处理有限公司 | Electric water channel dirt removing device |
| CN102963989B (en) * | 2012-09-24 | 2015-12-16 | 江苏江华水处理设备有限公司 | A kind of descaling method of inhibition sterilization |
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